VD Bluespray Irrigation Controller

[Brom 1]

Hi everyone,

 

I'm having some issues with Lua code in a virtual device I am writing.

I'm getting information on the status of my Bluespray irrigation controller.

It has a basic API and reports if any of the zones are on watering. I want to just query the unit and then print out if any are detected as on.

 

When I query bluespray controller and its not watering anything I get some JSON back which looks like this.

 

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When its IS watering I get the following.

 

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To make it even more complex sometimes the system reports multiple zones operating. (This is normal and ok. I just need to pick up the first zone reported)

 

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My issue is detecting if I get none, one or multiple active zones. If I have a valid zone then I then want to put the first zone number into the zoneterminal variable. If I don't have a valid zone I just want to put 0 into the zoneterminal variable.

The problem is when I try something like the code below I get

[ERROR] 22:11:22: line 56: attempt to index field '?' (a nil value)

 

I cant figure out how to deal with LUA arrays correctly. (specifically detecting valid entries)

The json.null operator does not seem to work the same way on array values.

 

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Any help appreciated.

ps Code for the output is really extra long. Looking to understand how I can manipulate the variable name / number I am outputting to reduce the number of if statements.

 

Once I get this figured out I plan to also add in buttons to perform manual runs.

 

Brom

 

 

[Brom 1]

I think I fixed issues with variable detection.

If anyone cares here is the vd

 

Will try and figure out buttons to turn the unit on in the future.

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[JacekP 8]

hi i have similar issue with "attempt to index field '?' (a nil value)" can you explain what did you do exactly, 

 

 

[Brom 1]

25 minutes ago, JacekP said:

hi i have similar issue with "attempt to index field '?' (a nil value)" can you explain what did you do exactly, 

 

 

 

Sorry to say.. I sold my Fibaro and moved to an alternate platform.

I cant remember how I got it all to work.

 

It might be you have a different number of zones.. I hard coded a fair amount in that script.

 

Sorry..